Roman coin identification 6 [solved]

Any idea about coin or emperor? Contantinus II?

18 diameter, 2.16 gr.

The reverse, even so it is in bad shape it seems FEL TEMP REPARATIO

You're right about the reverse, but I think the emperor is Constantius II. not Constantinus II. The obverse seems to be D N CONSTAN-TIVS P F AVG.
https://en.numista.com/catalogue/index.php?e=rome&r=fel+temp&st=1-2&cat=y&im1=&im2=&ru=&ie=&ca=3&no=&v=&a=&dg=&i=*constantivs*&b=&m=&f=&t=&t2=&w=&mt=&u=&g=&c=&wi=&sw=

This type is made in like a dozen of mints with the same design. The mintmark should be on the bottom of the reverse, under the two figures, but it looks like that it was worn away.